CN114560534A - Power generation and seawater desalination system based on heat penetration principle - Google Patents
Power generation and seawater desalination system based on heat penetration principle Download PDFInfo
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- CN114560534A CN114560534A CN202210061398.4A CN202210061398A CN114560534A CN 114560534 A CN114560534 A CN 114560534A CN 202210061398 A CN202210061398 A CN 202210061398A CN 114560534 A CN114560534 A CN 114560534A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/447—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by membrane distillation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/06—Pressure conditions
- C02F2301/066—Overpressure, high pressure
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/10—Energy recovery
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/70—Application in combination with
- F05B2220/706—Application in combination with an electrical generator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
The invention belongs to the technical field of seawater desalination and power generation, and particularly discloses a power generation and seawater desalination system based on a heat penetration principle, which comprises a heating device capable of heating seawater by using a low-grade heat source; a hydrophobic porous membrane-based thermoosmosis desalination module comprising a fresh water side, a seawater side, and a hydrophobic porous membrane positioned between the fresh water side and the seawater side; the hydroelectric generation device is used for generating electricity by utilizing the mechanical energy of the introduced water flow; the seawater side is communicated with the heating device and is used for heated seawater to pass through; the fresh water side can be filled with fresh water and is communicated with the water inlet end of the hydroelectric generation device; and a working valve for opening and closing the passage is further arranged on the passage between the fresh water side and the hydroelectric generation device, and the opening condition of the working valve is that the water pressure in the fresh water side reaches the specified power generation working water pressure. The system utilizes low-grade heat sources such as solar energy, waste heat and geothermal heat to realize water and electricity cogeneration, and the energy efficiency of the whole seawater desalination process is improved.
Description
Technical Field
The invention belongs to the field of power generation and seawater desalination, and particularly relates to a power generation and seawater desalination system based on a heat penetration principle.
Background
The current fresh water resources are increasingly tense, the global warming problem is increasingly serious, the energy structure mainly based on coal in China is urgently needed to be reformed, and the high-efficiency low-cost seawater desalination technology and the high-energy-efficiency low-energy-consumption new energy power generation technology are increasingly urgent.
A large amount of low-grade heat sources such as industrial waste heat, solar energy, geothermal energy and the like can be developed and utilized globally. The total industrial afterheat resource of China accounts for 17% -67% of the total fuel consumption, wherein the recyclable part accounts for about 60% of the total afterheat. However, the development and utilization of low-grade heat sources, particularly those at a temperature of less than 100 ℃, are not sufficient at present, and an economical and efficient low-grade heat source utilization technology is mainly lacked.
When a hydrophobic porous membrane is placed between two solutions with different temperatures, the temperature difference between the liquids on the two sides of the membrane can generate a transmembrane vapor pressure difference, and the vapor pressure difference can drive the vapor phase transmission of various components between the two liquids. The membrane distillation technology based on the heat penetration principle can utilize a low-grade heat source to separate the water solution containing the non-volatile solute, and has great application prospects in seawater desalination, ultrapure water preparation, wastewater treatment and azeotropic mixture separation. However, since the liquid-gas phase change process consumes a large amount of energy, the existing membrane distillation seawater desalination technology has the defects of high energy consumption, low energy utilization efficiency and the like, and the system integration, process and application expansion of the existing technology are needed to improve the energy efficiency of the whole seawater desalination process.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a power generation and seawater desalination system based on the heat penetration principle, and the system realizes water and electricity cogeneration by combining a heat penetration separation technology and a heat penetration energy conversion technology and utilizing low-grade heat sources such as solar energy, waste heat, geothermal heat and the like, thereby improving the energy efficiency of the whole seawater desalination process.
In order to achieve the purpose, the invention adopts the following technical scheme:
a power generation and seawater desalination system based on the heat penetration principle comprises,
a heating device capable of heating seawater by using a low-grade heat source;
a hydrophobic porous membrane-based thermoosmosis desalination module comprising a fresh water side, a seawater side, and a hydrophobic porous membrane positioned between the fresh water side and the seawater side;
the hydroelectric generation device is used for generating electricity by utilizing the mechanical energy of the introduced water flow;
the seawater side is communicated with the heating device and is used for heated seawater to pass through;
the fresh water side can be filled with fresh water and is communicated with the water inlet end of the hydroelectric generation device;
and a working valve for opening and closing the passage is further arranged on the passage between the fresh water side and the hydroelectric generation device, and the opening condition of the working valve is that the water pressure in the fresh water side reaches the specified power generation working water pressure.
Further, the thermal osmosis desalination module comprises a membrane module, wherein the membrane module is in a plate frame type or roll type and comprises an external shell and a hydrophobic porous membrane;
the hydrophobic porous membrane separates the housing into the seawater side and the freshwater side.
Furthermore, the flow directions of the seawater and the fresh water in the heat penetration desalination module are opposite.
Furthermore, the system also comprises a fresh water pressurizing assembly which is used for pressurizing the low-pressure fresh water input into the thermal osmosis desalination module by using the high-pressure fresh water output from the thermal osmosis desalination module.
Preferably, the fresh water pressurizing assembly comprises a pressure exchanger which is divided into a high pressure side and a low pressure side and is used for exchanging the water pressure of the high pressure side to the low pressure side;
the water inlet end of the high-pressure side is connected with the water outlet end of the fresh water side;
the low pressure side can be filled with fresh water, and the water outlet end of the low pressure side is connected with the water inlet end of the fresh water side.
Preferably, the pressure exchanger is a rotary positive displacement pressure exchanger.
Furthermore, in the system, the flow of fresh water entering the hydraulic power generation device for doing work to generate electricity is consistent with or close to the water flux of the hydrophobic microporous membrane;
the flow rates of the fresh water flowing into and out of the fresh water pressurizing assembly are consistent or similar.
Preferably, the hydrophobic porous membrane has a tensile strength of 5MPa or more.
Furthermore, the fresh water side and the seawater side are respectively provided with a separation net for separating adjacent membranes and forming a fluid channel.
Furthermore, the fresh water pressure relief device also comprises a fresh water buffer module which can flow in, flow out and store fresh water, wherein the fresh water buffer module is used for introducing the pressure-released fresh water from the fresh water pressurizing assembly and then sending low-pressure fresh water to the fresh water pressurizing assembly.
Further, the hydroelectric generation device is a water turbine.
Furthermore, the seawater desalination device also comprises a seawater concentration power generation assembly for generating power by using the concentration difference between the seawater and the concentrated brine flowing out from the seawater side.
Further, the seawater concentration power generation module comprises:
a semipermeable membrane module including a high concentration side, a low concentration side, and a semipermeable membrane disposed between the high concentration side and the low concentration side;
the second hydroelectric generation device is used for generating electricity by utilizing the mechanical energy of the introduced water flow;
the low-concentration side is used for seawater to pass through;
the high-concentration side can be filled with strong brine from the seawater side and is communicated with the water inlet end of the second hydroelectric generation device;
and a second working valve for opening and closing the passage is further arranged on the passage between the fresh water side and the second hydroelectric generation device, and the opening condition of the second working valve is that the water pressure in the high concentration reaches the specified second power generation working water pressure.
Compared with the prior art, the invention has the following beneficial effects:
in the power generation and seawater desalination system, seawater is pumped into a heater and heated by a low-grade heat source (100 ℃) and then sent into the seawater side of a heat penetration desalination module, high-pressure normal-temperature fresh water is arranged in the fresh water side at the other side of the heat penetration desalination module, water in high-temperature seawater is evaporated at the high-temperature side of a membrane, and is condensed and enriched in low-temperature fresh water after passing through a hydrophobic porous membrane, and salt in the seawater cannot permeate through the hydrophobic membrane; the fresh water side outlet is connected with the hydroelectric generation device, and high-pressure water flow is provided for users after the hydroelectric generation device does work;
in some embodiments, the high pressure water flow at the outlet of the fresh water side is divided into two paths, except for the one path leading to the hydroelectric power generation device, the other path leads to the inlet of the high pressure side of the fresh water pressurizing module, the energy of the high pressure water flow can be recovered by the fresh water pressurizing module, the outlet of the high pressure side is connected with the inlet of the fresh water buffer module, the pressure-relieved fresh water is temporarily stored in the fresh water buffer module and is sent to the low pressure side of the fresh water pressurizing module as low pressure fresh water to be pressurized. Therefore, the cyclic utilization of the fresh water is realized, and the pressure energy of the high-pressure fresh water is utilized to improve the pressure of the fresh water entering the fresh water.
In the seawater desalination process, the seawater concentration is increased to become strong brine, in some embodiments, a concentration difference power generation assembly is further used for generating power by utilizing the concentration difference between the strong brine discharged from the seawater side and the common seawater, so that the energy is fully recovered, and because the concentration difference between the fresh water and the seawater is not similar to that in the common concentration difference power generation, the fresh water resource is saved while the energy is utilized, and the energy efficiency is improved.
The invention can fully utilize low-grade heat sources such as solar energy, waste heat, geothermal heat and the like to realize water and electricity cogeneration by combining the heat penetration separation technology and the heat penetration energy conversion technology, so that the seawater desalination is converted from a pure energy consumption process to a process capable of realizing electric power generation. The system has the advantages of lower working temperature and working pressure, simple structure and simple and convenient operation, is suitable for water supply and power supply of ships, islands and seaside areas, is a new scheme which can efficiently utilize low-grade heat sources and has engineering application value and market prospect.
Drawings
Fig. 1 is a structural diagram of a power generation and seawater desalination system based on a heat penetration principle in embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of a membrane module in an embodiment of the invention;
fig. 3 is a structural diagram of a power generation and seawater desalination system based on the heat penetration principle in embodiment 1 of the present invention.
Description of the drawings reference numerals in figure 1 and figure 2 include: 1. the device comprises a membrane component, 2, a heater, 3, a pressure exchanger, 4, a fresh water buffer tank, 5, a water turbine, 6, a low-pressure pump, 7, a seawater pump, 8, an outer shell of the membrane component, 9, a hydrophobic microporous membrane, 10 and a separation net.
The reference numbers in figure 3 of the drawings include: 1. the system comprises a membrane component, 2, a heater, 3, a pressure exchanger, 4, a fresh water buffer tank, 5, a water turbine, 6, a low-pressure pump, 7, a sea water pump, 8, a second low-pressure pump, 9, a second pressure exchanger, 10, a semipermeable membrane component, 11, a second water turbine, 12 and a second sea water pump.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
in the description of the present invention, it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The power generation and seawater desalination system based on the heat penetration principle in this embodiment is basically as shown in fig. 1, and includes a membrane module 1, a heater 2, a pressure exchanger 3, a fresh water buffer tank 4, a water turbine 5, a low-pressure pump 6, and a seawater pump 7, which are connected by pipes. As shown in fig. 2, the membrane module 1 is a plate frame type, and mainly comprises an external shell 8 and a hydrophobic microporous membrane 9, the shell is separated from a seawater side and a fresh water side by the membrane, the desalination mode is a direct contact type, and the seawater and the fresh water flow in a counter-flow manner; the seawater pump 7 is used for pumping seawater, the seawater enters the heater 2 and is heated to 60 ℃ by solar energy, then enters the seawater side of the membrane component 1, the fresh water side on the other side of the membrane component 1 is fresh water with the temperature of 20 ℃ and the hydraulic pressure of 5MPa, moisture in the high-temperature seawater is evaporated on the high-temperature side of the membrane, namely the seawater side, passes through the porous hydrophobic membrane 9 and is condensed and enriched in the low-temperature fresh water, and salt in the seawater cannot permeate the hydrophobic microporous membrane 9; one path of the fresh water side outlet of the membrane component 1 is connected with the high-pressure side inlet of the pressure exchanger 3, the high-pressure fresh water is recovered in the pressure exchanger 3 to pressurize the low-pressure fresh water on the other side, and the high-pressure side outlet of the pressure exchanger 3 is connected with the water inlet of the fresh water buffer tank 4; the other path of the fresh water side outlet of the membrane component 1 is connected with a water turbine 5, and high-pressure water flow is provided for users after acting to generate electricity; the water outlet of the fresh water buffer tank 4 is connected to the inlet of the fresh water side of the membrane module 1 through the low-pressure pump 6 and the low-pressure side of the pressure exchanger 3.
The hydrophobic microporous membrane 9 is a membrane with large mechanical strength, such as an organic-inorganic hybrid membrane, and has a tensile strength of more than 5MPa, so that the membrane can work under a higher hydraulic pressure on the fresh water side of the membrane module 1. The fresh water side and the seawater side of the membrane component 1 are both provided with the separation net 10, which can play a role in separating adjacent membranes to form a fluid channel, and is also beneficial to destroying a temperature/concentration boundary layer, promoting the heat and mass transfer efficiency and slowing down the deposition of pollutants such as scaling substances on the membrane surface; in order to reduce the pressure loss of the fresh water side, the fresh water side separation net is thinner and has smaller thickness, and the seawater side separation net is thicker and has larger thickness. The fresh water side of the membrane component 1 is provided with an outlet, and the inlet and the outlet of the fresh water buffer tank 4 are provided with valves to control different working processes.
The pressure exchanger 3 in this embodiment adopts a rotary positive displacement pressure energy recovery technology, and the working efficiency can reach more than 95%. In the working process of the system, the flow of fresh water entering the water turbine 5 for power generation is consistent or similar to the water flux of the hydrophobic microporous membrane 9, and the flow of the low-pressure side and the high-pressure side of the pressure exchanger 3 are the same or similar, so that the stable and continuous operation of the system is ensured.
The specific working process of this embodiment is as follows: the seawater pump 7 is used for pumping seawater and sending the seawater to the heater 2; in the heater 2, seawater is heated by solar energy to 60 ℃, and then enters a seawater side flow channel of the membrane module 1; meanwhile, a certain amount of fresh water with the temperature of 20 ℃ (normal temperature) is filled in the fresh water side runner of the membrane module 1, all valves are kept closed at the moment, and a closed space is formed on the fresh water side of the membrane module 1;
the temperature difference between the two sides of the membrane in the membrane component 1 generates transmembrane steam pressure difference, the water in high-temperature seawater is evaporated at the high-temperature side of the membrane, passes through the porous hydrophobic membrane and is condensed and enriched in low-temperature fresh water, and the salt in the seawater cannot permeate through the hydrophobic membrane, so that the seawater desalination is realized. The volume of the fresh water side of the membrane module 1 is limited, and the pressure is increased along with the gradual increase of the water quantity. When the water pressure in the fresh water side reaches the required power generation operating pressure, the valves v1, v2, v3 and v4 are opened in sequence. The high-pressure fresh water flows out of the membrane component 1 and then is divided into two paths, one path of the high-pressure fresh water flows to the water turbine 5 to do work and then is supplied to a user, the other path of the high-pressure fresh water flows to the high-pressure side of the pressure exchanger 3 to exchange pressure energy with the low-pressure side fresh water, the low-pressure side fresh water is pressurized and then flows to the fresh water buffer tank 4 for recycling of the system, and in the embodiment, the power generation working pressure is set to be 50 MPa. By adjusting the valve v5, the flow of fresh water entering the water turbine 5 for power generation and the water flux of the hydrophobic microporous membrane 9 can be kept consistent (or close), and at the same time, the water at the outlet of the fresh water buffer tank 4 is pressurized to the osmotic working pressure through the low-pressure pump 6 and the pressure exchanger 3 and enters the fresh water side of the membrane module 1. During the process of the high-pressure fresh water flowing out of the membrane module 1, the water in the sea water continuously permeates into the membrane module, so that the water quantity on the fresh water side d is increased, the pressure is basically kept unchanged, and the increased water quantity is provided for users after the water turbine 5 applies work. The inlet and outlet flow rates of the fresh water buffer tank 4 can be equal or similar by adjusting the valve v2, and the circulation is completed.
Example 2
The power generation and seawater desalination system based on the heat penetration principle in this embodiment is basically as shown in fig. 3, and a pressure-relieving penetration type power generation device is added to the system based on embodiment 1. The pressure-retarded osmosis type power generation device comprises a second low-pressure pump 8, a second pressure exchanger 9, a semipermeable membrane assembly 10, a second water turbine 11 and a second seawater pump 12. Strong brine from hydrophobic membrane module 1 is pressurized into the high pressure side of semi-permeable membrane module 10 via second low pressure pump 8 and second pressure exchanger 9. On the other side of the semi-permeable membrane is the seawater delivered by a second seawater pump 12. The water in the seawater is driven to permeate into the high-pressure strong brine by the osmotic pressure difference generated by the concentration difference of the liquid on the two sides of the semipermeable membrane, the brine at the high-pressure side outlet of the semipermeable membrane component 10 is divided into two strands, one strand of brine flows to the second water turbine 11 to do work, and the flow rate of the brine is consistent with (or close to) the water flux of the semipermeable membrane; one path flows to the high pressure side of the second pressure exchanger 9 to exchange pressure energy with the low pressure side strong brine, so as to pressurize the low pressure side strong brine.
Compared with the embodiment 1, the slow-pressure permeation type power generation device in the embodiment utilizes the concentration difference between the strong brine at the outlet of the membrane module 1 and the seawater to generate power, and improves the energy efficiency of the system.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that, while the invention has been described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Meanwhile, the detailed structures, characteristics and the like of the common general knowledge in the embodiments are not described in detail herein. Finally, the scope of the claims of the present invention should be defined by the content of the claims, and the description of the embodiments and the like in the specification should be used for interpreting the content of the claims.
Claims (10)
1. A power generation and seawater desalination system based on the heat penetration principle is characterized by comprising,
a heating device capable of heating seawater by using a low-grade heat source;
a hydrophobic porous membrane based thermoosmosis desalination module comprising a fresh water side, a seawater side and a hydrophobic porous membrane located between the fresh water side and the seawater side;
the hydroelectric generation device is used for generating electricity by utilizing the mechanical energy of the introduced water flow;
the seawater side is communicated with the heating device and is used for heated seawater to pass through;
the fresh water side can be filled with fresh water and is communicated with the water inlet end of the hydroelectric generation device;
and a working valve for opening and closing the passage is further arranged on the passage between the fresh water side and the hydroelectric generation device, and the opening condition of the working valve is that the water pressure in the fresh water side reaches the specified power generation working water pressure.
2. The system of claim 1, wherein the thermal osmosis desalination module comprises a membrane module, the membrane module being in a plate-frame or roll-to-roll format comprising an outer shell, a hydrophobic porous membrane;
the hydrophobic porous membrane separates the housing into the seawater side and the fresh water side.
3. The system of claim 1, further comprising a fresh water pressurizing assembly for pressurizing the low pressure fresh water input to the thermal osmosis desalination module with the high pressure fresh water output from the thermal osmosis desalination module.
4. The system of claim 3, wherein the fresh water pressurizing assembly comprises a pressure exchanger divided into a high pressure side and a low pressure side for exchanging water pressure of the high pressure side to the low pressure side;
the water inlet end of the high-pressure side is connected with the water outlet end of the fresh water side;
the low pressure side can be filled with fresh water, and the water outlet end of the low pressure side is connected with the water inlet end of the fresh water side.
5. The system of claim 1, wherein the flow rate of fresh water entering the hydro-power generation device to generate power is consistent with or close to the water flux of the hydrophobic microporous membrane.
6. The system according to claim 1, wherein the hydrophobic porous membrane has a tensile strength of 5MPa or more.
7. The system of claim 1, wherein a spacer mesh is provided in each of the fresh water side and the seawater side for separating adjacent membranes and forming a fluid channel.
8. The system of claim 1, further comprising a fresh water buffer module capable of flowing in, out and storing fresh water, wherein the fresh water buffer module feeds pressure-released fresh water from the fresh water pressurizing assembly and delivers low-pressure fresh water to the fresh water pressurizing assembly.
9. The system of claim 1, further comprising a seawater concentration power generation module for generating power using a concentration between seawater and brine flowing from the seawater side.
10. The system of claim 1, wherein the seawater concentration power generation assembly comprises:
a semipermeable membrane module including a high concentration side, a low concentration side, and a semipermeable membrane disposed between the high concentration side and the low concentration side;
the second hydroelectric generation device is used for generating electricity by utilizing the mechanical energy of the introduced water flow;
the low-concentration side is used for seawater to pass through;
the high-concentration side can be filled with strong brine from the seawater side and is communicated with the water inlet end of a second hydroelectric generation device;
and a second working valve for opening and closing the passage is further arranged on the passage between the fresh water side and the second hydroelectric generation device, and the opening condition of the second working valve is that the water pressure in the high concentration reaches the specified second power generation working water pressure.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172189A (en) * | 2013-04-09 | 2013-06-26 | 中国科学院化学研究所 | Device for generating power by utilizing osmosis energy |
| CN103603765A (en) * | 2013-11-28 | 2014-02-26 | 集美大学 | Offshore-type wave energy sea water desalination and power generation combined device |
| CN103615363A (en) * | 2013-11-23 | 2014-03-05 | 华中科技大学 | Power generation device and power generation method adopting salinity gradient power |
| CN110040804A (en) * | 2019-04-25 | 2019-07-23 | 北京建筑大学 | A kind of method that sewage middle-low grade heat source is used for membrane distillation |
| CN111412555A (en) * | 2020-03-17 | 2020-07-14 | 华南理工大学 | Membrane type heat penetration power generation and liquid dehumidification integrated system |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172189A (en) * | 2013-04-09 | 2013-06-26 | 中国科学院化学研究所 | Device for generating power by utilizing osmosis energy |
| CN103615363A (en) * | 2013-11-23 | 2014-03-05 | 华中科技大学 | Power generation device and power generation method adopting salinity gradient power |
| CN103603765A (en) * | 2013-11-28 | 2014-02-26 | 集美大学 | Offshore-type wave energy sea water desalination and power generation combined device |
| CN110040804A (en) * | 2019-04-25 | 2019-07-23 | 北京建筑大学 | A kind of method that sewage middle-low grade heat source is used for membrane distillation |
| CN111412555A (en) * | 2020-03-17 | 2020-07-14 | 华南理工大学 | Membrane type heat penetration power generation and liquid dehumidification integrated system |
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